Global Patent Index - EP 4198167 A1

EP 4198167 A1 20230621 - BODY MADE OF METAL, A METAL-CERAMIC COMPOSITE OR CERAMIC WITH A WEAR-RESISTANT LAYER SYSTEM WITH A MULTI-LAYER STRUCTURE ON A FUNCTIONAL SURFACE SUBJECT TO WEAR, AND METHOD FOR MANUFACTURING THIS BODY

Title (en)

BODY MADE OF METAL, A METAL-CERAMIC COMPOSITE OR CERAMIC WITH A WEAR-RESISTANT LAYER SYSTEM WITH A MULTI-LAYER STRUCTURE ON A FUNCTIONAL SURFACE SUBJECT TO WEAR, AND METHOD FOR MANUFACTURING THIS BODY

Title (de)

KÖRPER AUS METALL, EINEM METALLKERAMISCHEN VERBUND ODER KERAMIK MIT EINEM AUF EINER VERSCHLEISSBEANSPRUCHTEN FUNKTIONSFLÄCHE MEHRSCHICHTIG AUSGEBILDETEN VERSCHLEISSSCHUTZSCHICHTSYSTEM, UND VERFAHREN ZUR HERSTELLUNG DIESES KÖRPERS

Title (fr)

CORPS EN MÉTAL, EN COMPOSITE MÉTAL-CÉRAMIQUE OU EN CÉRAMIQUE DOTÉ D'UN SYSTÈME DE COUCHE DE PROTECTION CONTRE L'USURE CONÇU MULTICOUCHE SUR UNE SURFACE FONCTIONNELLE SOUMISE À L'USURE ET PROCÉDÉ DE FABRICATION DUDIT CORPS

Publication

EP 4198167 A1 20230621 (DE)

Application

EP 21214441 A 20211214

Priority

EP 21214441 A 20211214

Abstract (en)

[origin: US2023182211A1] A coated tool, such as a rotating, cutting tool, includes a tool body and a multilayer wear protection coating system. The wear protection system coats a functional surface of the tool body that is subject to wear and includes a first undoped diamond layer and a second undoped diamond layer disposed over the first undoped diamond layer. The first undoped diamond layer is electrically conductive and exhibits grain boundary conductivity from delocalized electrons. The second undoped diamond layer is electrically insulating. The first undoped diamond layer is 4-20 microns thick and is made with diamond grains whose size ranges from 4-10 nm. The first and second diamond layers are applied by chemical vapor deposition (CVD) using a hot-wire method. The wear protection system also includes an additional undoped diamond layer that is electrically insulating and is disposed between the functional surface of the tool body and the first diamond layer.

Abstract (de)

Die vorliegende Erfindung betrifft einen Körper aus Metall, einem metallkeramischen Verbund oder Keramik mit einem auf einer verschleißbeanspruchten Funktionsfläche des Körpers mehrschichtig ausgebildeten Verschleißschutzschichtsystem, und ein Verfahren zur Herstellung dieses Körpers.

IPC 8 full level

C23C 16/27 (2006.01); C23C 28/00 (2006.01); C23C 28/04 (2006.01)

CPC (source: CN EP US)

B23B 27/14 (2013.01 - US); B23B 51/00 (2013.01 - CN); B32B 9/00 (2013.01 - CN); B32B 9/005 (2013.01 - CN); B32B 9/007 (2013.01 - CN); B32B 9/04 (2013.01 - CN); B32B 15/00 (2013.01 - CN); B32B 15/04 (2013.01 - CN); C23C 16/271 (2013.01 - EP); C23C 28/044 (2013.01 - EP); C23C 28/048 (2013.01 - EP); C23C 28/42 (2013.01 - EP); B23B 2226/27 (2013.01 - US); B23B 2226/31 (2013.01 - US); B23B 2228/04 (2013.01 - US); B23B 2228/105 (2013.01 - US); B23B 2228/24 (2013.01 - US); B23B 2228/36 (2013.01 - US); B23B 2228/41 (2013.01 - US); B23B 2228/44 (2013.01 - US)

Citation (applicant)

Citation (search report)

  • [A] EP 3257968 A1 20171220 - KYOCERA CORP [JP]
  • [A] US 2009017258 A1 20090115 - CARLISLE JOHN A [US], et al
  • [XI] WANG HUA ET AL: "Tribological performance and wear mechanism of smooth ultrananocrystalline diamond films", JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, vol. 290, 25 November 2020 (2020-11-25), NL, pages 116993, XP055924705, ISSN: 0924-0136, DOI: 10.1016/j.jmatprotec.2020.116993
  • [A] SALGUEIREDO E ET AL: "Mechanical performance upgrading of CVD diamond using the multilayer strategy", SURFACE AND COATINGS TECHNOLOGY, vol. 236, 18 October 2013 (2013-10-18), pages 380 - 387, XP028788625, ISSN: 0257-8972, DOI: 10.1016/J.SURFCOAT.2013.10.017
  • [A] HARNIMAN ROBERT L. ET AL: "Direct observation of electron emission from grain boundaries in CVD diamond by PeakForce-controlled tunnelling atomic force microscopy", CARBON, vol. 94, 2 July 2015 (2015-07-02), GB, pages 386 - 395, XP055923857, ISSN: 0008-6223, DOI: 10.1016/j.carbon.2015.06.082

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

Designated validation state (EPC)

KH MA MD TN

DOCDB simple family (publication)

EP 4198167 A1 20230621; CN 116262381 A 20230616; US 2023182211 A1 20230615

DOCDB simple family (application)

EP 21214441 A 20211214; CN 202211608611 A 20221214; US 202218081635 A 20221214